SU1549635A1 - Unit for expanding works - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to devices for assembling parts by rolling. The purpose of the invention is to increase productivity and expand technological capabilities. The plant for rolling parts comprises a housing in which a slider with a bending and rolling tool is pivotally arranged and a clamping unit. In the case, rotational stops are installed, one of which is designed as a stop with a support surface larger than the stroke of the slide, and the other is in the form of a roller. Rolling the part is made after pressing the part to the cradle, turning on the drive of the bending and rolling tool. The slider begins to move in the longitudinal direction, bending the edge. In this case, the shank of the slide slides on the support surface of the stop. After the end of the folding, the shank of the slide slides off the stop, and the slide slides on the axis, rolling the curved edge with a predetermined force. 6 Il.

Description

one

nineteen

18

W / L

B &

SHU

y / j /////////////

five

eleven

SP

О About O

oo ate

fa 5

The invention relates to the processing of metals by pressure, in particular to devices for assembling parts by rolling.

The aim of the invention is to increase the productivity of the rolling plant and expand its technological capabilities, which ensure its incorporation into assembly and stamping lines with automatic transport of the workpiece.

movements during bending, and another, by means of a support bar, interacts with the rod 16 at a moment for ki. The other limiter of the turn of the 12 is a roller 20, which is fixed in the housing 6. Rusks 21 are mounted on the axis 13. In section 6 on the side walls are made for the longitudinal movement of the cy and slots 23 for the movement of the axis 24

FIG. 1 shows the proposed link 7 along an arc path.

The rolling installation is described as follows.

installation in the initial position of all mechanisms; in fig. 2 shows section A-A in FIG. one; in fig. 3 - installation at the time of clamping the part and beginning to bend the edge; in fig. 4 shows a section BB in FIG. 3; in fig. 5 - installation at the time of the end of the bend (the beginning of rolling); in fig. 6 is the same at the time of the end of rolling. The installation for rolling parts consists of identical sections 1, which

15

Installation for rolling parts works as follows.

When the mechanisms are set to their original position, the workpiece is conveyed by the conveyor 5 to the rolling position (shown in Fig. 2 by a thin line) and lowered onto the bed 4 (double dashed line).

The rod 9 of the cylinder 10 lowers the bracket-shaped frame 8 and presses And

mounted on racks 2 mounted 20 on the workpiece to the cradle 4. When

25

Based on 3 from the side of the workpiece edges. On the racks 2 are also fixed lodgements 4, corresponding to the configuration of the workpiece. Between the pillars 2 there is a transport 5 for transferring the part from position to position and laying it on the cradle 4. The number of positions, sections 1 and their location is determined by the configuration and dimensions of the part. Figures 1 and 2 show a variant of the intermittent placement of sections 1 along the curvilinear contour of the large-sized part (the hood of a truck). Gaps that were not processed in the first working position are processed in the subsequent with overlapping joints (the second position in the drawings is not shown). Each section 1 35 consists of a base body 6 with an instrumental unit and a clamping unit.

The clamping unit is made in the form of a fixed clamping force fixed to the housing 6 by moving the rod 16 of the power cylinder 17, resulting in movement of the slide 12 together with the crackers 21 in the longitudinal direction, while the shank 18 slides along the surface of the stop 19 and flexibly -zalvatsovochnaya tool 14 bends the edge of the workpiece

After the end of the bend of the edge, the rod 16, which does not reach the dead point of the knee-lever mechanism 15, abuts against the support pin of the shank 18, and the edge of the shank 18 at this moment comes down from the support surface of the stop 19, the value of which is less than the length of the slide stroke. The rotation of the slider 12 begins, around the axis 13, the folded edge is rolled with a certain force, and the slider 12 is detached from the roller 20.

When reaching a certain effort

the link 7 of the hollow brace-shaped frame 8, 40 is switched energy carrier in

enclosing the housing 6 with the ability to move from the rod 9 of the power cylinder 10 mounted inside the housing 6. At the upper end of the bracket-shaped frame 8 is clamped 11.

The tool block is made in the form of a slider 12 placed inside the body 6 with an axis 13 fixed on it. One end of the slider 12, on which the bending-folding tool 14, which is a profile bar, is rigidly fixed, projects out of the body 6 towards the cradle 4. The other the end of the slide 12 is hinged, through the knee-lever mechanism 15 is connected with the rod 16 of the power cylinder 17, which is also fixed

45

50

the ram 17, the stem of which returns to its original position, while the slider 12 under its own weight or spring (not shown) presses against the roller 20 and then moves to its initial position. After the part has been opened, the cycle is repeated.

The invention allows the slide to be rotated on an axis at the end of the stroke, which makes it possible to perform bending and rolling in one stroke of the slide, and also provides an increase in the bend angle per stroke, reduces the time for machining parts; Installing the clamping unit in one case with the toolbox inside case 6. The slider has a shank 18, the 55th block allows you to embed one side of which interacts with the installation itself in the automatic assembly stop 19, which is the limiter on the stamping line with the automatic transvoltage of the slide 12 during the longitudinal port.

movements during bending, and the other side interacts with the rod 16 at the moment of rolling, by means of the support pen. Another limiter of rotation of the slider 12 is a roller 20, the axis of which is fixed in the housing 6. Rusks 21 are installed at the ends of the axis 13. In the housing 6, grooves 22 are made on the side walls for longitudinal movement of the crackers 21 and grooves 23 for moving the axis 24 of the four-piece 7 along the arc trajectories.

Installation for rolling parts works as follows.

When the mechanisms are set to their original position, the workpiece is conveyed by the conveyor 5 to the rolling position (shown in Fig. 2 by a thin line) and lowered onto the bed 4 (double dashed line).

The rod 9 of the cylinder 10 lowers the bracket-shaped frame 8 and presses And

workpiece to the lodgement 4. When

workpiece to the lodgement 4. When

When a certain clamping force is reached, the stem 16 of the power cylinder 17 is moved, as a result of which the slide 12 moves along with the crackers 21 in the longitudinal direction, the shank 18 slides along the surface of the stop 19 and the bending and folding tool 14 bends the edge of the workpiece

After the end of the bend of the edge, the rod 16, which does not reach the dead point of the knee-lever mechanism 15, abuts against the support pin of the shank 18, and the edge of the shank 18 at this moment comes down from the support surface of the stop 19, the value of which is less than the length of the slide stroke. The rotation of the slider 12 begins, around the axis 13, the folded edge is rolled with a certain force, and the slider 12 is detached from the roller 20.

When reaching a certain effort

energy is switched to

energy is switched to

the ram 17, the stem of which returns to its original position, while the slider 12 under its own weight or spring (not shown) presses against the roller 20 and then moves to its initial position. After the part has been opened, the cycle is repeated.

The invention allows the slide to be rotated on an axis at the end of the stroke, which makes it possible to perform bending and rolling in one stroke of the slide, and also provides an increase in the bend angle per stroke, reduces the time for machining parts; installation of the clamping unit in the same housing with the instrumental block makes it possible to embed the installation itself into automatic assembly-forming lines with automatic transport.

Claims (1)

The invention The installation for rolling parts, comprising a housing, a tool block mounted rotatably on an axis carrying a bending-rolling tool associated with a drive made in the form of a hinge mounted on the body of the actuating cylinder, by means of a knee-lever mechanism, a clamp assembly, lodgment for installation of the part, tilting of the tool block, made in the form of a stop mounted on one side of the tool block, and a roller mounted on the other, tool block is made in the form of a slider with a support heel, placed in the tail part of the slider for interacting with the power cylinder rod, rusks are made at the ends of the axis, and grooves are made in the body to accommodate the latter, that in order to increase the support support surface less than the length performance and expansion of the techno-working stroke of the slide, while the node capabilities, it is equipped with a clamping device installed in the same housing with the limit unit in the housing that is innovative in the housing. the gate of the tool block, made in the form of a stop mounted on one side of the tool block, and a roller mounted on the other, the tool block is made in the form of a slide with a support heel placed in the tail part of the slide for interacting with the power cylinder rod, crackers, and in the case there are grooves for placing the latter, the size the abutment surface is shorter than the length " Yu her S me S Sg96t-91 w y /// l ///////////// 3 IS sixteen 12 //